How classes and objects are composed to form larger structures. Adapter, Decorator , Bridge How objects communicate and distribute responsibility. Strategy, Observer, Command Reader Perspectives
: It shifted the focus from writing code to designing systems with "distilled knowledge" of object-oriented techniques. Design Patterns Elements of Reusable Object-Ori...
The book (1994), often called the "Gang of Four" (GoF) book, is a landmark text in software engineering. Written by Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides, it provides a catalog of 23 design patterns that solve common, recurring problems in software design. Why it is Considered a "Good Story" (Masterpiece) How classes and objects are composed to form
: Many consider it a "must-read" for any serious software engineer. The book (1994), often called the "Gang of
The book organizes patterns into three main "chapters" or categories based on their purpose: Key Examples Ways to create objects while hiding the creation logic. Factory Method , Singleton , Builder Structural